What you are already having i.e. aortic stenosis and cardiac stiffness ( most probably due to cardiac amyloidosis ) may cause the left ventricle to work harder to pump blood into the aorta and deposits of an abnormal protein (amyloid) in the heart tissue, which make it hard for the heart to work effectively.
The pituitary gland is a gland in the brain which produces chemicals called hormones (an endocrine gland). Hormones are chemical messengers which help different organs in the body communicate with each other. The pituitary gland is one part of a messenger system.he pituitary gland is sometimes called the master gland because it controls several other hormone-releasing glands. Some of the glands the pituitary gland controls are the thyroid gland, the ovaries, the testicles (testes) and the adrenal glands.
The pituitary gland is sometimes called the master endocrine gland  because it makes hormones that affect the way many parts of the body work. It also controls hormones made by many other glands in the body.Pituitary tumors are divided into three groups: 1  Benign pituitary adenomas: Tumors that are not cancer.2  These tumors grow very slowly and do not spread from the pituitary gland to other parts of the body.t also controls hormones made by many other glands in the body. Pituitary tumors are divided into three groups: 1  Benign pituitary adenomas: Tumors that are not cancer. 2  These tumors grow very slowly and do not spread from the pituitary gland to other parts of the body.